Answer:
Three units, put together in different patterns make, essentially, everything.
Step-by-step explanation:
Atoms are composed of three elementary particles, protons, neutrons and electrons. As a result Chemistry and Physics have reduced the complexity of the sensible world to incredible simplicity. Three units brought together in different patterns essentially do everything.
This is because everything we know that is touchable is matter and matter is composed of atoms that are composed of three units.